Stent graft with improved proximal end
First Claim
1. A stent graft prosthesis for placement in a vessel comprising:
- a graft portion including a first end, a second end, and a main body portion, generally tubular in shape, that comprises a first layer of material;
a cuff portion, having a first edge and a second edge, the first edge thereof located about the first end of the main body of the graft portion, the cuff portion comprising a second layer of material closely adjacent the main body portion wherein the second edge comprises one of a frayed portion and a fringed portion; and
a supporting structure attached about the first end of the graft portion and to the cuff portion.
4 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a stent graft prosthesis comprising a graft portion that includes a main body portion and an cuff portion, the cuff portion generally located at or near the proximal end of the main body portion and extending circumferentially therealong. Stents comprising the graft supporting structure are also attached to graft portion about the proximal end. In one embodiment, the cuff portion comprises material that is folded over the outside surface of the main body portion with an anchoring stent being attached over the cuff and main body portions, extending proximally therefrom. In another series of embodiments, the cuff portion comprises an external sealing zone that extends around the outer main body portion to help prevent leakage of fluids. In one example, the material of the second edge of the cuff portion is frayed to better engage the vessel walls and promote thrombus and/or tissue growth.
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Citations
16 Claims
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1. A stent graft prosthesis for placement in a vessel comprising:
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a graft portion including a first end, a second end, and a main body portion, generally tubular in shape, that comprises a first layer of material; a cuff portion, having a first edge and a second edge, the first edge thereof located about the first end of the main body of the graft portion, the cuff portion comprising a second layer of material closely adjacent the main body portion wherein the second edge comprises one of a frayed portion and a fringed portion; and a supporting structure attached about the first end of the graft portion and to the cuff portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A stent graft prosthesis for placement in a vessel comprising:
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a graft portion including a main body portion generally tubular in shape, that includes a first end and a second end; a cuff portion comprising an external sealing zone generally located at or closely adjacent the first end of the graft portion, the external sealing zone having structure comprising a second layer of material that generally encircles and extends laterally from the main body portion to create a circumferential seal between graft portion and the adjacent walls of the vessel to reduce leakage of bodily fluid thereabout; and wherein the cuff portion comprises a band of material situated therearound. - View Dependent Claims (10, 11, 12)
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13. A stent graft prosthesis for placement in a vessel comprising:
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a graft portion including a main body portion; an outer cuff portion, having a first edge and a second edge, that is located about the first end of the graft portion and attached thereto wherein the outer cuff portion comprises a frayed portion; and an anchoring stent attached to the main body portion and outer cuff portion, the anchoring stent extending proximally therefrom. - View Dependent Claims (14, 15, 16)
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Specification